This work demonstrates a method to create triple-shape memory systems using crystalline micelles in epoxy, suggesting advancements for adaptive devices.
Key Points
The research aims to develop a versatile method for creating triple-shape memory materials with distinct shape programming capabilities.
Utilized elongated crystalline micelles formed through crystallization-driven self-assembly (CDSA)
Created a three-dimensional micellar network within a cross-linked epoxy matrix
Conducted photopolymerization of epoxy at room temperature to preserve micellar structure
Adjusted the poly(ethylene-block-ethylene oxide) content to tune thermal transition positions
Achieved two distinct thermally activated switching transitions: melting of the crystalline network and glass transition of the epoxy matrix
Demonstrated precise control over shape programming and recovery with the developed materials
Found that varying PE-b-PEO content effectively tuned material performance and transition behavior